Improvement in compositions for coating boilers



UNITED STATES PATENT QFFICE,

CHARLES H. GRAHAM, OF ROCHESTER, PENNSYLVANIA, ASSIGNOR TO JAMES RANSOM,OF SAME PLACE.

IMPROVEMENT l N COMPOSITIONS FOR COATING BOILERS.

Specification formirg part of Letters Patent No. 149,744, dated April14, 1874; application filed March 17, 1874. I

and pipes; and it consists in the combination of the following-namedingredients in the pro I portions substantially as given: I

Fire-clay,' thirty per cent; Wood ashes, twenty per cent. pulverizedcharcoal, twenty per cent; common salt, ten per cent. ground lime, tenper cent; ground asbestus, ten per ccuti In some cases'the lime may beomitted, but I prefer generally to retain it. The Whole to be ground inoil, forming a paste which may be mixed with sufficient hair to make ittenacious, and applied in any suitable and convenient manner.

Having fully described my invention, I claim- The composition forcoating boilers consisting of the ingredients specified, combinedsubstantially in the proportions specified.

In testimony that I claim the foregoing, I have hereunto set my handthis 14th day of March, 187 4.

CHAS. H. GRAHAM.

Witnesses:

JAMES RANSOM, J. A. SHALns.

